Peel sweet and white potatoes. Cut potatoes into slices ½ inch thick. Arrange some of the Flanken on the bottom of Dutch oven. Arrange slices of sweet and white potatoes over the meat. Scatter some prunes and carrots over potatoes. Sprinkle some of the brown sugar and lemon juice over this layer. Repeat this process until all the ingredients are finished.*

Fill the Dutch oven with water until the ingredients are barely covered. Bring to a boil on top of the stove and reduce to a simmer. Simmer ingredients for 1 ½ hours. Remove from heat and let it cool.

Carefully remove meat, potatoes, carrots and prunes from liquid. Arrange in oven to table serving dish. Place gravy in freezer several hours or in refrigerator overnight until fat congeals at the top. Remove fat. Taste gravy and adjust seasoning by adding more brown sugar and or lemon juice if necessary. Pour gravy over sweet potato mixture. Place in preheated 375 F. oven and bake for two to three hours basting constantly until gravy has thickened and glazed ingredients. Serve hot. This dish may be cooled completely and frozen.